I am very curious about the subject of The Black Death.

However I do know the Yersina Pestis gave the illness to Europe I am curious as to how the Yersina Pestis actually got the disease. And how did they survive the boat ride to Europe without dying?

The affordable care act has expanded mental health and substance abuse benefits to 62 million people and is an addition to the mental health parity act of 2008. the changes and additions require mental health coverage in small group and individual plans where people were not previously covered. what is the biggest benefit of these changes? what major challenges are still associated with mental health coverage? explain your reasoning.